4 ms·

It seems the comments area here is full of lots of questions and few answers. Let me try to clear some things up. Lets start with how it currently works... Wh

It seems the comments area here is full of lots of questions and few answers. Let me try to clear some things up. Lets start with how it currently works... When you create an application or website in C#,F#,VB.NET or any other .NET language you are not really 'compiling' it per se to native code, you are compiling it to an intermediate language called IL - very much like Java byte code. When your application or website is run for the first time the .NET runtime converts this code to native code on the local computer and then caches this binary and officially compiled native version of your code. The result is, the first time you run your app or a section of the code there is a small performance hit while the .NET runtime converts your code to native. Let me be perfectly clear, this is a one time thing - a first time thing. Once you have gotten past that every subsequent run is going to be as fast as other native code. (Why is it not as fast as something written in c or c++ you may ask - because there are other things the .net runtime is providing for you like garbage collection, but that is a whole other talk) So how is this different? This preview allows you to skip this JIT process and image caching process altogether. This is first targeted for Windows store apps, when you would first run it on your machine it was slow on first launch because all this extra work was being done. Microsoft decided they could take the server side resources they had and run this JIT and imaging process ahead of time and when someone downloads and installs your app - this work was already done and first launch would be faster - as much as 60% faster. There are also lots of changes under the hood to make this all work better - Andrew Pardoe is on this comment thread further down and mentioned things like a refactored runtime, static-optimized libraries, static marshalling all combining for performance wins. Does this mean I can build apps for Unix with C# No, Mono is still the best way to do that Can I build simple console apps with this and deploy to machines without the .NET runtime? No, right now this is only available for Windows Store apps. Besides, unless you have some Windows 98 machines sitting around nearly every PC has the .NET runtime. Will this make my app run faster? Starting up, yes. Normal operation, probably not. .NET runtime and jitter have been around a long time and they are impressively efficient and fast. This includes some tweaks to parts of the runtime but don't expect to see your text file processing app go from 10 seconds to 2 or something like that. Will this help me pick up chicks? Depends.

deleted 13y ago
[deleted]
swasheck 13y ago
thank you for your lucid and erudite explanation. will this help me pick up chicks? as a dba, i appreciate your response, though i think that the answer is most likely, "probably not."
graycat 13y ago
When I read the OP, I was tempted to scream about bad writing due to lack of context, undefined terminology, and general lack of explanation, not nearly the first time I was tempted to scream at Microsoft's technical writing abilities. Your post provided essentially everything that was missing. But, what the heck is a "Windows store app"? What the heck is "jitter"?
- keithwarren 13y ago
  Windows Store Apps are what was once called 'Metro' apps and now termed 'Modern' apps. They are essentially Microsoft's version of apps from iOS app store or Google Play store but focused on Windows 8 tablet and desktops (and as of today, the same apps you develop for these environments can also work on Windows Phone and XBOX One) In the past if you were writing a client side or 'desktop' app for Windows you used C++ and MFC or a .NET language with Windows Forms or WPF (or lots of other options) to build that experience. Going forward Microsoft would prefer you build using this new model they are calling Windows Store apps. Along with that comes a set of rules and explicit declarations about what your app will do (much like we have on Android or iOS). This should in theory limit the number of crapware that exists, though that remains to be seen. Jitter is a term we often use for a program that does the JIT work, JIT is an acronym for Just In Time which in context means Just In Time Compiler; it runs just before the code is needed. You have a program with 10K lines of code but the command you just sent the program only invokes 500 lines - a jitter or Just in time compiler will only convert the code that is actually needs to perform the operation you requested (thus performing faster).
  - xxs 13y ago

deleted 13y ago

[deleted]

swasheck 13y ago

thank you for your lucid and erudite explanation. will this help me pick up chicks? as a dba, i appreciate your response, though i think that the answer is most likely, "probably not."

graycat 13y ago

When I read the OP, I was tempted to scream about bad writing due to lack of context, undefined terminology, and general lack of explanation, not nearly the first time I was tempted to scream at Microsoft's technical writing abilities. Your post provided essentially everything that was missing. But, what the heck is a "Windows store app"? What the heck is "jitter"?

keithwarren 13y ago
Windows Store Apps are what was once called 'Metro' apps and now termed 'Modern' apps. They are essentially Microsoft's version of apps from iOS app store or Google Play store but focused on Windows 8 tablet and desktops (and as of today, the same apps you develop for these environments can also work on Windows Phone and XBOX One) In the past if you were writing a client side or 'desktop' app for Windows you used C++ and MFC or a .NET language with Windows Forms or WPF (or lots of other options) to build that experience. Going forward Microsoft would prefer you build using this new model they are calling Windows Store apps. Along with that comes a set of rules and explicit declarations about what your app will do (much like we have on Android or iOS). This should in theory limit the number of crapware that exists, though that remains to be seen. Jitter is a term we often use for a program that does the JIT work, JIT is an acronym for Just In Time which in context means Just In Time Compiler; it runs just before the code is needed. You have a program with 10K lines of code but the command you just sent the program only invokes 500 lines - a jitter or Just in time compiler will only convert the code that is actually needs to perform the operation you requested (thus performing faster).
- xxs 13y ago